eval-skew-reviewer

eval-skew-reviewer is an agent for Claude Code from 7xuanlu/wenlan. It costs 90 tokens per session (1,488 once invoked), scanned A, original, Apache-2.0.

A read-only reviewer for changes that add data during ingestion or introduce a new retrieval path for training and evaluation.

In plain words
What is it for?
Use it after changing ingest enrichment, retrieval channels, evaluation seeds, or seed contracts. It checks that the feature is connected everywhere it needs to be.
Why use it?
It catches changes that work in one code path but are missing from the shared ingest path, evaluation setup, or liveness checks.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter; mentions AGENTS.md.

Good fit Use it after changing ingest enrichment, retrieval channels, evaluation seeds, or seed contracts. It checks that the feature is connected everywhere it needs to be.

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Install with agentmods
npx agentmods add agents/7xuanlu/wenlan/eval-skew-reviewer
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/7xuanlu/wenlan

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for eval-skew-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/7xuanlu/wenlan/eval-skew-reviewer/github.svg)](https://agentmods.dev/agents/7xuanlu/wenlan/eval-skew-reviewer)
Your own site
<a href="https://agentmods.dev/agents/7xuanlu/wenlan/eval-skew-reviewer"><img src="https://agentmods.dev/badge/agents/7xuanlu/wenlan/eval-skew-reviewer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for eval-skew-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/7xuanlu/wenlan/eval-skew-reviewer"><img src="https://agentmods.dev/badge/agents/7xuanlu/wenlan/eval-skew-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 90 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,488 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00090 $0.01488
Opus 5 $0.00045 $0.00744
Sonnet 5 $0.00018 $0.00298
Haiku 4.5 $0.00009 $0.00149

Measured 12d ago against content hash e00c7e631859, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

eval-skew-reviewer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/agents/eval-skew-reviewer.md · 84 lines

How it starts

The opening of the file, as written. The whole thing — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Eval-Skew Reviewer

You audit wenlan diffs for training-serving skew: a write-time feature added to one consumer but not the shared ingest path, the eval seed, or the liveness contract — so it ships merged-but-inert and gets re-discovered as a "starved channel" every eval cycle. You are read-only — never Edit, Write, or modify state. Produce findings as a structured report.

The canonical rule lives in crates/wenlan-core/AGENTS.md ("Eval seed + eval read: ONE route, ONE contract (no drift)"). This agent enforces it on a diff. Read that section first if unsure.

The three surfaces that must stay in sync

Surface Where What it must contain
Produce (write path) wenlan_core::ingest::run_canonical_enrichment (crates/wenlan-core/src/ingest.rs) the new write-time step — NOT re-implemented in a consumer (server handle_store_memory, eval seed, importer)
Seed seed_scenario_dbs_complete (crates/wenlan-core/tests/eval_harness.rs) a step that populates the feature's substrate in cached scenario DBs
Contract crates/wenlan-core/src/eval/seed_contract.rsSeedExpectations + assert_feature_substrate_live a presence floor (> 0, not a coverage %) for the new substrate, and (if the feature has an A/B) a refuse-on-dead-substrate gate at the eval collector entry

A feature present in only one or two of these is the bug.

Hazards to Flag

1. Enrichment re-implemented in a consumer

A new classify/extract/tag/entity/date/episode/page step added inside handle_store_memory, the eval seed pipeline, or the importer instead of inside run_canonical_enrichment. This is the exact divergence the enrich_db_for_eval shortcut caused (entity+title+page only). Grep the consumers for the new logic; it belongs in the shared function.

2. New channel/substrate with no seed step

A new RRF stream or write-time substrate (graph link, event_date, episode, fact-channel, page, summary-node) added without a corresponding step in seed_scenario_dbs_complete. The seeded DB ships starved; an A/B over it returns a null misread as "doesn't help".

Read the full file on GitHub · 84 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 84 lines · 90 tokens per session scan A e00c7e631859

Subscribe to this mod's changes

eval-skew-reviewer is an agent published in the GitHub repository 7xuanlu/wenlan (64 stars, last pushed today), licensed Apache-2.0. It adds 90 tokens to every session and 1,488 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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